INVESTMENT SECURITIES - Contractual maturities, Held to maturity (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Held to Maturity, Amortized Cost
Due in one year or less	$ 5
Due after one year through five years	42,168
Due after five years through ten years	29,798
Due after ten years	175,176
Total, Amortized Cost	247,147
Held to Maturity, Estimated Fair Value
Due in one year or less	5
Due after one year through five years	38,799
Due after five years through ten years	24,514
Due after ten years	146,415
Total, Estimated Fair Value	$ 209,733